21057968746640

Names of 21057968746640

• Cardinal: 21057968746640 can be written as Twenty-one trillion, fifty-seven billion, nine hundred sixty-eight million, seven hundred forty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.105796874664 × 10¹³

Factors of 21057968746640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5380

Divisors of 21057968746640

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 17 19 20 28 34 35 38 40 56 68 70 76 80 85 95 112 119 133 136 140 152 170 190 238 266 272 280 289 304 323 340 380 476 532 560 578 595 646 665 680 760 952 1064 1156 1190 1292 1330 1360 1445 1520 1615 1904 2023 2128 2161 2261 2312 2380 2584 2660 2890 3169 3230 4046 4322 4522 4624 4760 5168 5320 5491 5780 6338 6460 8092 8644 9044 9520 10115 10640 10805 10982 11305 11560 12676 12920 15127 15845 16184 17288 18088 20230 21610 21964 22183 22610 23120 25352 25840 27455 30254 31690 32368 34576 36176 36737 38437 40460 41059 43220 43928 44366 45220 50704 53873 54910 60211 60508 63380 73474 75635 76874 80920 82118 86440 87856 88732 90440 107746 109820 110915 120422 121016 126760 146948 151270 153748 161840 164236 172880 177464 180880 183685 192185 205295 215492 219640 221830 240844 242032 253520 257159 269365 287413 293896 301055 302540 307496 328472 354928 367370 377111 384370 410590 421477 430984 439280 443660 481688 514318 538730 574826 587792 602110 605080 614992 624529 656944 698003 734740 754222 768740 821180 842954 861968 887320 915841 963376 1023587 1028636 1077460 1149652 1204220 1210160 1249058 1285795 1396006 1437065 1469480 1508444 1537480 1642360 1685908 1774640 1831682 1885555 2047174 2057272 2107385 2154920 2299304 2408440 2498116 2571590 2792012 2874130 2938960 3016888 3074960 3122645 3284720 3371816 3490015 3663364 3771110 4094348 4114544 4214770 4309840 4371703 4579205 4598608 4816880 4886021 4996232 5117935 5143180 5584024 5748260 6033776 6245290 6410887 6743632 6848209 6980030 7165109 7326728 7542220 8188696 8429540 8743406 9158410 9772042 9992464 10235870 10286360 11168048 11496520 11866051 12490580 12821774 13696418 13960060 14330218 14653456 15084440 16377392 16859080 17400979 17486812 18316820 19544084 20471740 20572720 21858515 22993040 23732102 24430105 24981160 25643548 27392836 27920120 28660436 30168880 32054435 33718160 34241045 34801958 34973624 35825545 36633640 39088168 40943480 43717030 47464204 47937463 48860210 49962320 51287096 54785672 55840240 57320872 59330255 64108870 68482090 69603916 69947248 71651090 73267280 78176336 81886960 83062357 87004895 87434060 94928408 95874926 97720420 102574192 109571344 114641744 116419553 118660510 121806853 128217740 130115971 136964180 139207832 143302180 166124714 174009790 174868120 189856816 191749852 195440840 232839106 237321020 239687315 243613706 256435480 260231942 273928360 278415664 286604360 332249428 348019580 349736240 383499704 390881680 415311785 465678212 474642040 479374630 487227412 512870960 520463884 547856720 573208720 582097765 609034265 650579855 664498856 696039160 766999408 814936871 830623570 910811797 931356424 949284080 958749260 974454824 1040927768 1164195530 1218068530 1301159710 1328997712 1392078320 1629873742 1661247140 1821623594 1862712848 1917498520 1948909648 1979132401 2081855536 2211971507 2328391060 2436137060 2602319420 3259747484 3322494280 3643247188 3834997040 3958264802 4074684355 4423943014 4554058985 4656782120 4872274120 5204638840 6519494968 6644988560 7286494376 7916529604 8149368710 8847886028 9108117970 9313564240 9744548240 9895662005 10409277680 11059857535 13038989936 13853926807 14572988752 15483800549 15833059208 16298737420 17695772056 18216235940 19791324010 22119715070 27707853614 30967601098 31666118416 32597474840 35391544112 36432471880 37603515619 39582648020 44239430140 55415707228 61935202196 65194949680 69269634035 72864943760 75207031238 77419002745 79165296040 88478860280 110831414456 123870404392 138539268070 150414062476 154838005490 158330592080 176957720560 188017578095 221662828912 247740808784 263224609333 277078536140 300828124952 309676010980 376035156190 526449218666 554157072280 601656249904 619352021960 752070312380 1052898437332 1108314144560 1238704043920 1316123046665 1504140624760 2105796874664 2632246093330 3008281249520 4211593749328 5264492186660 10528984373320 21057968746640
• Sum of all divisors σ(n): 62616134572800
• Sum of proper divisors (its aliquot sum) s(n): 41558165826160
• 21057968746640 is an abundant number, because the sum of its proper divisors (41558165826160) is greater than itself. Its abundance is 20500197079520

Bases of 21057968746640

• Binary: 100110010011011110000101111110011000010010000₂
• Hexadecimal: 0x1326F0BF3090
• Base-36: 7GPWAW2VK

Squares and roots of 21057968746640

• 21057968746640 squared (21057968746640²) is 443438047734467012511289600
• 21057968746640 cubed (21057968746640³) is 9337904550263462806980786256962066944000
• The square root of 21057968746640 is 4588896.2449199045
• The cube root of 21057968746640 is 27614.6043737751

Scales and comparisons

• 21,057,968,746,640 seconds is equal to 669,578 years, 14 weeks, 2 hours, 57 minutes, 20 seconds.
• To count from 1 to 21,057,968,746,640 would take you about one million, six hundred seventy-three thousand, nine hundred forty-five years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21057968746640 cubic inches would be around 2301.2 feet tall.

Recreational maths with 21057968746640

• 21057968746640 backwards is 04664786975012
• The number of decimal digits it has is: 14
• The sum of 21057968746640's digits is 65
• More coming soon!